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Liquid metal assisted cracking (LMAC)
A reporter raises concerns about the risk of liquid metal assisted cracking during the hot dip galvanising process.
1 November 2006
CROSS Safety Report
Report ID: 45
Region: CROSS-UK
Follow up to Liquid Metal Assisted Cracking (LMAC)
A recent case involving cracking around holes in large structural components was detected immediately after galvanising as a result of the team being aware of the need for post galvanising inspection.
1 July 2008
CROSS Safety Report
Report ID: 105
Region: CROSS-UK
Freezing splits galvanised SHS columns
Concerns were raised after several square hollow section members split vertically on a partially complete construction site.
1 April 2012
CROSS Safety Report
Report ID: 253
Region: CROSS-UK
Further issues with freezing and galvanised hollow sections
A reporter was involved in correcting a cold formed galvanised square hollow section (SHS) four storey balcony structure where longitudinal splits formed in at least two of the four columns.
1 January 2014
CROSS Safety Report
Report ID: 314
Region: CROSS-UK
Street sign collapse causes fatality
This report highlights the potential dangers of street signs on fixed vertical supports subject to wind loading.
1 October 2018
CROSS Safety Report
Report ID: 793
Region: CROSS-UK
Freeze and thaw of another RHS
Further to reports about the freezing of water in hollow sections a correspondent has sent photos of a section of mild steel RHS that was removed from a bridge and shows the bulging that can occur.
1 January 2015
CROSS Safety Report
Report ID: 485
Region: CROSS-UK
Further report on freezing of water in hollow sections
A reporter has a further warning on the issue of freeze/thaw cracking following report 434 after their firm encountered a similar problem on a UK project and investigated the matter.
1 January 2017
CROSS Safety Report
Report ID: 579
Region: CROSS-UK
Square Hollow Section (SHS) expansion due to freezing
A reporter has come across problems in British Columbia (temp range -30 degrees to +40 degrees) of cracking to square hollow sections (SHS) due to the ingress of water and freezing.
1 April 2017
CROSS Safety Report
Report ID: 641
Region: CROSS-UK
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